package cn.itcast.demo;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/ServletDemo")
public class ServletDemo extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        1.获取虚拟目录名称 getContextPath()
        String path = req.getContextPath();
        System.out.println(path);
//        2.获取ServletDemo映射路径 getServletPath
        String servletPath = req.getServletPath();
        System.out.println(servletPath);
//        3.获取访问者ip getRemoteAddr()
        String remoteAddr = req.getRemoteAddr();
        System.out.println(remoteAddr);

//      4.获取请求消息的数据 getQueryString()
        String queryString = req.getQueryString();
        System.out.println(queryString);
//        5.获取统一资源标识符 getRequestURI()
        String requestURI = req.getRequestURI();
        System.out.println(requestURI);
//        6.获取统一资源定位符 getRequestURL()
        StringBuffer requestURL = req.getRequestURL();
        System.out.println(requestURL);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req,resp);
    }
}
